Airaid 350-532 PowerAid Throttle Body Spacer

I just installed this today, and so far, it definitely seems to be working; at least in terms of horsepower and torque gain. I have noticed an increase in low end power as well as improved throttle response, and my car has smoother acceleration than before.Installation was a breeze, it took me less than an hour. And yes, there is definitely a whistling noise coming from it. You can hear it when you step on the gas.As far as MPG gains, I haven't owned it long enough to say whether it helps there. After a week, I will update this review and add my opinion on whether it helps with fuel consumption.**Edit** OK, after a week, I've gained about 2 MPG so this product is definitely worth it! It may take a few days for the computer on your car to adjust for the greater amount of air intake however, so give it a few days before the increased fuel efficiency kicks in.

Pros: Easy to install, took me like 30 minutes, but took another 30 minutes due to the fact I cleaned the throttle body unit, cleaned inside the manifold chamber. (Was a little sticky inside the manifold, not anymore...spotless and smooth inside.) TIP: Use vasoline to hold the O-Ring in the spacer.So one hour, and did a throttle body relearn/reset. Started the vehicle and noticed nice idle at 700rpm. Took it for a drive and at 2200 to 3500 rpm WOT - pulls a bit stronger or it is the new sound it's making throughout the whole breathing system on this car. Sounds a throaty/intake draw of air. From 3500 to 6500 rpm this spacer with my 90mm throttle body and MOPAR CAI with functional RamAir. This car really opens up and sings. (I do have the car tuned and with SPL2 mods.)I shall see when I have driven with this spacer for a bit. Have tuner pc hooked up to check and record data to compare.CONS: It was not red in color like advertised, wanted red, sent me black, it's ok...as long as it functions as it is intended to.No other issue's at this time.Thought: I want to dyno this with and without the spacer to really see if it functions as intended.

I use this on my dodge challenger R/T Manual and I love the spacer.PROS: Feel an increase in response between shifts and during low end torque. My drive also feels more crisp and power seems to be available asap. This was a problem since i had a manual and i would be in the wrong gear sometimes but need power and was in between too much rpm and too little rpm.Whistle - The whistle sounds pretty cool. I had this product (diff model #) on my challenger SXT V6 and it only whistled during low end torque. On my R/T V8 the 350-532 whistles pretty often in any gear after 2.5 rpm. This is something you barely hear unless your windows are down or your driving in low torque so it's not annoying. The whistle certainly turns heads and makes people wonder. It sounds like NOS or a turbo blow out, not exactly but people know there is something under the hood making that noise.Gas mileage - my gas mileage gained 2 MPG after 2 months of testing and reseting my pcm after installing.CONS: You might not like the whistle? Some compare it to bad breaks but it really doesn't sound like that. It just sounds like air blowing out and it's fun to take off with it.Afterthought: This is one of those products that everyone rules out as snake oil or placebo and never even try it. However; a lot of people are biased and have not tried this. How does better airflow and less turbulence not improve performance? If it doesn't do what it claims just return it to amazon or Airaid and get all your money back. Simple as that. One important installation tip is reset your PCM by either taking out the fuse for it for 15sec or unplugging your battery for 1hr or you fuel to air ratio will not adjust.

It was a simple install on a 2021 scatpack charger. It came with everything that you need to install it. I went with this brand because other ones had reviews that said they were missing parts or they had to make their own gaskets.I do not think it makes much of a difference in power, or at least nothing that I could tell. It might make a small difference on a dyno, not on horsepower but with changing the torque curve. I honestly thought about returning it but I do enjoy the sound that it makes. It sounds similar to a turbo but It does not make the sound all the time. I only hear it when I am light on the throttle.I do have a ported throttle body and an aftermarket intake so that might change the sound or when the sound happens. I would buy this spacer again but not at retail price. I think it is overpriced for what it is and does.

Product fits 2015 Dodge Challenger R/T just fine. Easy install. Slight whistle, not annoying unless you just hate engine noises. Had one of these on my 2006 GMC Sierra Denali, increased gas mileage by a small bit, had it on the truck for over 5 years. Just got this installed on the Dodge, so unable to tell of any increases as of now, have it paired with a Spectre Air Intake. Will be seeing if it increases MPG over the coming months.

Since I can't give this device a negative 5 star, I'll give it the lowest I can. This product absolutely SUCKS!!!! It did not give any increase, in fact, it decreased my throttle response, tq, and hp. Prior to putting this spacer on, my 08 charger rt had a great throttle response and was pretty fast due to my CAI and tune. After putting the spacer on, my car was like stock again, but with an annoying whistle sound. Even after retuning the car, it still was like stock. After I took this POWER THEIF off, my car came back to life. Don't waste your time nor your money on this junk!

My Challenger now seems much more responsive but I've not yet determined if there are any fuel savings. Creates a slight whistle when I accelerate, which reminds me of the sound of a turbo...The new screws, that came with it, were of a finer thread than what came out of my original throttle body so I had to go find some longer screws with a more coarse thread, to prevent mis-threading or damaging my throttle body housing...Easy to install and a great product overall...

Love this purchase. Can hear the whistle when I get on top of it! Throttle response is excellent and added a rumble to my exhaust on my manual 2017 Challenger SRT. Got this for $58 on sale. Wouldn’t pay regular price but for that price ...you bet!!

Great product does what they say it's supposed to do.Amazing pick up from the start.

Love it. Makes that. Sucky sucky sound lol

Great price and fast shipping.

I didn't notice any particular gain of power or response. All that was evident is the whistling sound